Driven Disc Replacement Driven Disc Bearing Replacement

Maintenance

Driven Disc Replacement (Continued)			Driven Disc Bearing Replacement
2. Using needle nose pliers, unhook the drive spring
2. Using needle nose pliers, unhook the drive spring					!	WARNING	!
	(A, Figure 29) and slide the driven disc assembly				!	WARNING	!
	off the hex shaft.			DO NOT attempt any maintenance, adjustments or
3. Remove the two snap rings (A, Figure 30) which				service with engine and blade running. STOP engine
	secure the rubber driven disc (B) to the driven disc			and blade. Disconnect spark plug wire and secure
	assembly.			away from spark plug. Engine and components are
4. Install a new rubber driven disc onto the driven				HOT. Avoid serious burns, allow sufficient time for all
	disc assembly, and secure with the retaining rings.			components to cool.
5. Reverse the above procedures for reassembly and
5. Reverse the above procedures for reassembly and			IMPORTANT: The bearing on these machines is
	installation of the driven disc assembly.		IMPORTANT: The bearing on these machines is
			staked into the thrust plate. The bearing will have to be
			driven out with a mallet and a large punch. A new bear-
			ing with four retaining screws will have to be purchased
			to replace existing bearing.
			If the driven disc bearing requires replacement, replace
			the bearing as follows:
				1. Remove the driven disc assembly. Refer to the
		Reproduction
	A				Section entitled “Driven Disc Replacement”.
	A			2. Remove both s ap ri gs (A, Figure 30) that
					secure the rubber driven disc (B) to the thrust
			3.		plate.
			3.		Slide he rubber driven disc hub out of the bearing.
			4.		Drive out	he ex sting bearing (C).
				5. Install a new bearing and secure to the thrust plate
					with fo	retaining screws. Tighten the screws
					sec rely.
				6. Reassemble the components in reverse order.
Figure 29: Removing the driven disc assembly			NOTE: Be sure to replace the shim washer (D) when
			reassembling the driven disc assembly.

						D

Maintenance

Driven Disc Replacement (Continued)

Driven Disc Bearing Replacement

(A, Figure 29) and slide the driven disc assembly

off the hex shaft.

DO NOT attempt any maintenance, adjustments or

3. Remove the two snap rings (A, Figure 30) which

service with engine and blade running. STOP engine

secure the rubber driven disc (B) to the driven disc

and blade. Disconnect spark plug wire and secure

assembly.

away from spark plug. Engine and components are

4. Install a new rubber driven disc onto the driven

HOT. Avoid serious burns, allow sufficient time for all

disc assembly, and secure with the retaining rings.

components to cool.

5. Reverse the above procedures for reassembly and

IMPORTANT: The bearing on these machines is

installation of the driven disc assembly.

staked into the thrust plate. The bearing will have to be

driven out with a mallet and a large punch. A new bear-

ing with four retaining screws will have to be purchased

to replace existing bearing.

If the driven disc bearing requires replacement, replace

the bearing as follows:

1. Remove the driven disc assembly. Refer to the

Reproduction

Section entitled “Driven Disc Replacement”.

2. Remove both s ap ri gs (A, Figure 30) that

secure the rubber driven disc (B) to the thrust

plate.

Slide he rubber driven disc hub out of the bearing.

Drive out

he ex sting bearing (C).

5. Install a new bearing and secure to the thrust plate

with fo

retaining screws. Tighten the screws

sec rely.

6. Reassemble the components in reverse order.

Figure 29: Removing the driven disc assembly

Figure 30: Replacing the driven disc